期刊
CHEMELECTROCHEM
卷 7, 期 2, 页码 428-436出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201901708
关键词
water electrolysis; oxygen evolution reaction; metal phthalocyanines; carbon nanotubes; alkaline media
资金
- Natural Science and Engineering Research Council (NSERC) [RGPIN05494]
- National Autonomous University of Mexico [DGAPA-IN101118, DGAPA-IN203219]
- National Council of Science and Technology of Mexico (CONACYT) [250655]
- Doctorate Degree Program in Chemical Sciences of UNAM
- CONACyT
This work reports the facile preparation of single-walled carbon nanotubes (SWCNTs) noncovalently functionalized with 3d transition metal (II) phthalocyanines MPcs (M=Mn, Fe, Co and Ni) and their electrochemical evaluation towards the oxygen evolution reaction (OER) in alkaline media. The modification of SWCNTs with MPcs improved the potential required for the oxygen evolution reaction in 0.1 M and 1 M KOH by lowering the potential by approximately 120 mV in comparison with unmodified SWCNTs, at a current density of 10 mA cm(-1). The onset potential of the hybrids is close to the bulk Ni electrode in 1 M KOH and significantly outperforms Ni and Ir black electrodes in 0.1 M KOH solution. Nickel, cobalt and iron phthalocyanines showed auto-activation during extended cyclic voltammetry and long-term chronoamperometric measurements in both KOH concentrations. The excellent electrocatalytic activity of hybrids obtained and the straightforward method of their synthesis opens the possibility of exploring the proposed materials for applications in anion exchange membrane water electrolysis (AEMWE).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据